n. 【生化】维生素原
[网络] 成物或维生素前身；先形质

听一分钟英文：Vitamins-维他命

Our bodies need vitamins, thats a fact. If we dont get enough vitamins, we become ill. But how do we know if were getting enough vitamins. I worry about that. Especially because a lot of the food I eat isnt so healthy. I wonder how many vitamins ther

发表于:2018-12-04 / 阅读(36) / 评论(0)

听一分钟英文-V

60秒科学:Vitamins Block Some Exercise Benefits

Exercise is good for you. Antioxidants are good for you. But put them together and its not as good as youd think. Because a recent study shows that some vitamins block the beneficial effects of exercise. A good workout not only gets your heart pumpi

发表于:2019-01-02 / 阅读(89) / 评论(0)

60秒科学

VOA慢速英语2013 Vitamins are Important to Good Health

Vitamins are Important to Good Health This is SCIENCE IN THE NEWS, in VOA Special English. Im Bob Doughty. And Im Faith Lapidus. This week, we tell about vitamins. Many jobs must be done with two people. One person takes the lead. The other helps. It

发表于:2019-01-12 / 阅读(42) / 评论(0)

2013年VOA慢速英语(五)月

VOA慢速英语2010年-SCIENCE IN THE NEWS - Vitamins are Imp

BOB DOUGHTY: This is SCIENCE IN THE NEWS, in VOA Special English. Im Bob Doughty. FAITH LAPIDUS: And Im Faith Lapidus. This week, we tell about vitamins. (MUSIC) BOB DOUGHTY: Many jobs must be done with two people. One person takes the lead. The othe

发表于:2019-01-12 / 阅读(44) / 评论(0)

2010年VOA慢速英语(九)月

DEVELOPMENT REPORT - Study Says Vitamins May Slow AIDS Virus

DEVELOPMENT REPORT - Study Says Vitamins May Slow AIDS Virus By Jill Moss Broadcast: Monday, July 12, 2004 This is Robert Cohen with the VOA Special English Development Report. A study of women infect

发表于:2019-01-30 / 阅读(48) / 评论(0)

农业与发展

SCIENCE IN THE NEWS - From A to Zinc: The Story of Vitamins

SCIENCE IN THE NEWS - From A to Zinc: The Story of Vitamins By Nancy Steinbach Broadcast: Tuesday, March 29, 2005 (MUSIC) VOICE ONE: I'm Bob Doughty with Phoebe Zimmermann, and this is the VOA Special

发表于:2019-01-30 / 阅读(73) / 评论(0)

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学英语单词

-word

agreement price

airborne launch control center

anteplacental

anti-malarials

arcuate ligaments of knee

artress

asynchronous record

auteurisms

baekyong do (paekyong do)

bagenalstown (muine bheag )